US1416419A - Binding-wire-cutting mechanism for wire-bound-box-blank machines and the like - Google Patents

Description

J. SHELLENBERGER. BINDING WIRE CUTTING MECHANISM FOR WIRE BOUND BOX BLANK MACHINES AND THE LIKE.

APPLICAT-IDN FIL ED FEB. 20, 1919. RENEWED AUG. I3, 1921.

Patented. May 16, 1922- 3 SHEET$SHEET 1.

1. SHELLENBERGER.

BINDING WIRE CUTTING MECHANISM FOR WIRE BOUND BOX BLANK MACHINES ANDv THE LIKE. APPLICATION FILED FEB. 20, 1919. RENEWED AUG. 13.1921.

1 A 1 6A 1 9 a Patented May 16, 1922.

3 SHEETSSHEET 2.

5 II II lhJl II II ll II II H II II ILJI II I] I! II J. SHELLENBERGER. v BINDING WIRE CUTTING MECHANISM FOR WIRE BOUND BOX BLANK MACHINES AND THE LIKE.

APPLICATION FILED. FEB. 20,1919. RENEWED AUG. 13. I92I.

IAWAEQI Patented May 16, 1922.

3 SHEETS-SHEET 3.

barren stares lea-rear otter.

JOHN SHELLENBERGER, or ROME, GEORGIA, ASSIGNOR TO snALnn' casn'ooivirnnyg A.

" CORPORATION or NEW'YORK.

BINDING-WIRE-CUTTING MECHANISM FOR VJIRE-BOUND-BOX-BLANK MACHINES AND THE LIKE.

Specification of Letters Patent.

Patented May 118, 1922.

Application filed February 20, 1919, Serial No. 278,187. Renewed August 13, 1921. Serial No. 403,298.

To all w hom it may concern Be it known that I, JOHN SrmLLnNnnnoEn, a citizen of the United States of America, and resident of Rome, Floyd County, State of Georgia, have invented certain new and useful improvements in BindingWire-Cutting Mechanism for lVire-Bound-Box-Blank iilachines and the like, of which the following is a specification.

This invention relates to certain improvements'in wire bound box blank machines; and the objects and nature of the invention will be readily understood by those skilled in the art in the light of the following explanation of the accompanying drawings illustrating what I now believe to be the preferred mechanical expression or embodiment of my invention from among other forms, constructions and arrangements within the spirit and scope thereof.

ire bound box blanks of commerce comprise sheets of thin lumber or veneer traversed by several rows of binding wires stapled to the sheets of a blank and continuous throughout the length thereof. These blanks are produced in flat form of a length to bend along transverse lines usually so that each blank will fold up to form all four side walls of a receptacle or box. The blanks are usually produced by machines wherein the assembled sheets and binding wires are fed forward. step by step through stapling mechanism periodically operative to apply the staples while the blanks are at rest between the feeding steps or strokes. The machines complete these blanks in succession one after the other, usually with a more or less certain or predetermined spac-- ing between the blanks. The binding wires are drawn from reels or spools by the forward or feeding movements of the blanks and hence the binding wires continuous from each completed stapled blank as it passes forward from the stapling mechan to the succeeding blank. bridging the space between the completed blank and the suc ceeding blank. In orderto remove and separate the completedblanks it is hence necessary to sever these binding wires joining the completed blank with the blank that follows.

It is an object of my invention to provide wire bound box blank machinery with mechanism for automaticallyv severing these wires.

A further object of the invention is to provideimprovements in wire cutters applicable to wire boundbox machinery for severin the binding wires.

P ith these and other objects in View my invention consists in certain novel features in construction, combinations and arrangements as more fully and particularly pointed out and specified hereinafter.

Referring to the accompanying drawings:

Fig. 1 is a conventional or diagrammatical showing of a wire bound box blank machine, parts being omitted and other parts indicated by dotted lines, one of the frame uprights being broken away to show the cutting mechanism of'my invention.

I Fig. 2 is a detail. View of a portion of the cutter operating mechanism.

Fig. 3 is a horizontal section througha portion of the machine.

Fig. is a detail rear elevation of thecutting mechanism, the machine bed, rails and feed chains being shown in section, the cutter bladesbeing shown approximately in normal positions, a stapled box blank being shown in end elevation with the binding wires in section.

Fig. 5 is a detail vertical section through the slide and fixed bars and the blocks of the cutting mechanism.

Fig. 6 is a detail top plan of the slide block and certain adjacent parts, some of said parts appearing in horizontal section, the latch or trip being shown in dotted lines, the block and latch being shown in their normal positions. r

Fig. 7 is a detail view showing the slide block forced back by the feed chain to the position it assumes while the wire cutting operation is being performed, the vertically reciprocatory rack that actuates the cutters being shown in cross section and in mesh with the toothed sector.

Fig. 8 is a detail view showing the slide block at its limit of forward movement during the next forward step of the chain after the wire cutting operation, the trip or latch being shown by dotted lines in tripped chain-lug-releasing position just before the s rin returns said slide to normal )osition;

Figs. 9, 10, and 11 are detail elevations showing respectively a cutter in normal position, in position approximately midway the cutting stroke, and in final cutting position just before the cutting mechanism starts on the return stroke.

In the particular example illustrated, I show a wire bound box machine embodying frame uprights 1, stapling mechanism 2, operated by means of a reciprocating cross head 3, to periodically apply taples to the binding wires a and sheets of lumber b. The cross head is reciprocated vertically by one. or more pitmen 4, having crank or eccentric connections 5 with the main drive shaft 6. The binding wires a are fed or drawn from spools 7 and. pass through the stapling mechanism with the sheets 5 and are secured thereto by the staples 0 applied by said mechanism. The sheets of lumber move longitudinally through the machine in a suitable guideway usually formed or established by elongated parallel horizontal rails 8. The sheets are advanced step by step along said rails and through the stapling mechanism by any suitable means, although in this example l show endless traveling link belts 10 for this purpose. The forwardly moving upper lengths of these belts travel in depressed channels in said rails and the sheets rest on and are carried or conveyed forward by the belts. The conveyer formed by the belts is supported in any suitable manner, as by sprocket wheels, and is driven in any suitable manner, as by pawl and ratchet mechanism operatively connected in any suitable manner with the main drive shaft (3 to advance the conveyer step by step and time the movement thereof with respect to the stapling mechanism so that the conveyor and blanks carried thereby will be atrest while the staples are being applied and so that the conveyer and blanks will make their forward feeding strokes or steps while the stapling mechanism is making its return stroke and possibly starting on its operative stroke.

The conveyer is provided with means to locate, gage or determine the front end or beginning of each box blank, and where the conveyer is provided with several such means, they are spaced apart longitudinally of the conveyer a distance equal to the length of completed blank plus the desired spacing between the rear end of a completed or stapled blank and the front end of the succeeding blank which may be only partially stapled. This spacing distance is usually about four inches more or less. In the example illustrated, each such stop or gage means can consist of one or more upwardly projecting lugs 15, fixed to and. moving with the conveyer.

Where each link belt is formed with such. lugs, the lugs constituting each means are alined transversely of the conveyer. In assembling the sheets on the conveyer at the sheet receiving end thereof, the first sheet of each blank is pressed forward against said lug or lugs and the remaining sheets of a complete blank are thereafter successively arranged and assembled on the conveyer,

and when the last sheet of a complete blank has been assembled on the conveyer, no more sheets are assembled on the receiving end of the conveyer until the next lug 15 on the conveyer advances to sheet receiving position whereupon the first sheet of the next blank is assembled on the conveyer against the rear edge of said lug, hence the spacing or empty space on the conveyer between the rear end of a blank and the following lug 15 at the front of the preceding blank.'

These lugs are of greater length vertically than the thickness of the sheets and hence project above the same. Sometimes the conveyer is provided with shorter spacing lugs 15 to determine the spacings between different sections of a blank, but where employed these lugs 15 are vertically short an d do not project above the sheets on the conveyer. 7

According to my invention, 1 provide means for cutting the binding wires that join a stapled or completed blank with the following blank and l arrange such wire cutting means at any suitable portion of the machine along the conveyer beyond the outlet or discharging side of the stapling mechanism. In the example illustrated. l locate the cutting mechanism near the stapling mechanism but beyond the same in the direction of blank feed, and provide separate cutters for each binding wire.

F or instance, in the drawings, I show three binding wires and hence I provide three cutters spaced according to the binding wire spacing. Each cutter consists of a block 20 above the binding wire having a lower ap proximately horizontal cutting edge 20 arranged transversely with respect to the wire, and an elongated vertically swingable blade 21 at one end fulcrumed at 21' to one end of the block. This blade tapers to its free end and has a top cutting edge 2i terminating in a wire holding and cutting shoulder 21*. The flat face of the blade closely its the vertical flat face of the block and as the blade swings upwardly its cutting edge cooperates with the bottom edge 20' of the block to shear the wire, as more fully appears hereinafter. Any suitable means can be provided to adj ust ably support and operate these cutters. in the example illustrated, I show alined fixed Vertical posts 22 arranged beyond the op posite edges of the sheet lumber or blank guideway. These posts are formed with alined transverse guides or slideways 23 re ceiving a longitudinally reciprocatory horizontal bar 24 arranged transversely of said guideway and above the horizontal plane of the top surfaces of the blanks traveling in said guideway. The side of this bar is formed with a longitudinal dovetailed or undercut groove 25. The blocks 20 are ar ranged along the bar 24 and are clamped to the side face thereof by bolts 26 having tapered heads in the groove 25. By loosening the nuts on these bolts each block can be independently adjusted longitudinally of the bar, the bolt heads sliding in the groove. The blocks can thus be adjusted to various positions along the bar as rendered necessary by the positions and spacing of the binding wires. Also blocks and cutters can be added where the number of binding wires is in creased.

Above and parallel with the reciprocating bar 24 is a fixed bar 27 secured to the posts 22 and formed with a longitudinal dovetailed groove 27". This bar 27 carries blocks 28, one for each block 20 andarranged above the same. The blocks 28 are normally clamped ri idly. to but are individually adjustable longitudinally of bar 27 through the medium of bolts 28 having heads slidable in the groove 27. The blades 21 are swung on their various strokes by links 29 depending at the faces of the blocks and blades and at their upper ends pivoted to the blocks 28 and at their lower ends pivoted to the free end p0rtions of the blades.

As hereinafter appears, suitable means are provided for reciprocating the slide 24 an operative stroke when the portions of the binding wires to be severed arrive at the cutting station, i. e., when the feeding mech anism comes to rest with the space between a stapled blank and the succeeding blank located under the cutting blades. On its operative stroke, the slide 24 moves from its normal position, at its limit of movement in one direction, to its limit of movement in the opposite direction and then returns to normal position. Thisoperative stroke of the slide, opens the cutters and advances the blades to positions below the binding wires, closes the cutters to sever the wires by swinging the blades to their limits of upward movement, and then returns the blades to normal inoperative positions out of the way oi the advancing blanks and binding wires. The blades are thus swung and controlled by the reciprocation of the slide through the me dium of the links 29 at their upper ends pivoted to the relatively fixed blocks 28 and support 27. When the slide 24 is at rest in normal position, the links 29 are inclined "from vertical position and the blades are thereby held elevated with their points beside blocks 20. The blades in normal position are held elevated above the blanks and each blade is withdrawn to one side of the line of the binding wire which it is adiusted to sever onits operative stroke. The blades thus remain inoperative and entirely withdrawn from the mechanism is thus at rest between feed strokes with this unoccupied space below the blades and while the stapling mechanism is performing an operative stroke, certain de vices cause an operative stroke of the slide 24. The forward movement of the slide moves the points of free ends of the blades toward the binding wires to be severed thereby and as the links 29 swing down toward the vertical position said blades are swung down into said unoccupied space so that the free ends of the blades are below the planes of the wires by the time said links assume the vertical position. The shears or cutters are then wide open to receive or straddle the wires and are ad vanring' toward the wires during this movement so that the points of the blades slip under the wires and force the wires into the bite between the blades and edges 20 of the shear blocks 20. The continued movement of the slide 24 carries the links beyond the vertical and the l blades are thereupon swung upwardly to sever the wires by the shearing action of the cooperating edges of the blades and shear blocks in which operation the shoulders 21" serve to hold the wires from slipping past the free ends of the blades. The cutting or shearing action has been completed by the time the slide reaches its limit of movement opposite normal position, and the slide thereupon re turns on its back stroke to normal position with the blades withdrawn. This complete stroke of the slide occurs before the feed mechanism starts on its next forward feeding stroke or step. i

It will be c served that all of the cutters or shears inc e in unison in performing their operations and that an exceedingly pom-r l'ul toggle or lever arrangement is provided for operatiz-ig the b It will also be observed that the positions of the blades can be accur; ely attained by relative adjustmen ts between the blocks 20, 28 of each shear or cutter. also that the position of each shear or cutter can be accurately adjusted with respect to tie wires; also that the number oi cutters or shears can be increased or dii'ninished by removal or addition of cutters to the bars because, in this instance, of the provision oi. the longitudinal dovetailed grooves opening through ends of the bars.

Any suitable i .eans can be provided for actuating the slide 24 to perform an operative stroke and for timing the operation end al of the latch or lever extending forwardly beyond the slide block and slidable under a bracket %8 formed with a cam slot 41 in which a pin 4:6 carried by said end of the lever slides. The rear portion of this slot 41 is straight and parallel with the direction of feed and is formed to normally hold the lever 41 in operative position to engage lug l5, and also to hold said lever in normal position while the block is being moved to bring the toothed sector into alinement with the rack (Fig. 7). The front end portion of said slot is inclined laterally to swing the lever 41 (through the medium of pin 16) laterally to throw its rear end l1. clear of the lug 15 (Fig. 8) and thus release the slide block when said block is carried forward during a portionof'said next feedin step of the feed mechanism.

Vhen the lever all has thus been tripped to release the block from the lug 15, the spring 38 returns the block to normal position and during this return movement, the inclined portion of said slot swings the lever 41 back to the normal position (Fig. 6). The bracket 48is carried by the frame bar or rail 8 to which bracket 36 is secured. in the example illustrated, these two brackets are bolted to the outer edge or vertical portion of said rail and extend-inwardly above the rail to overhang the path traveled by the box blanks, and are independently adjustable longitudinally of said rail. F or instance, the clamping bolts for the brackets can have enlarged heads slidable in an undercut longitudinal groovein said edge portion of the rail.

The means for throwing the cutting mech anism into gear with its operating means, can be operated by any suitable means moving with the feed mechanism and timed by the passage of the rear end of a stapled blank past the cutters or by the approach of the front end of the succeeding blank toward the cutters. I do not wish to limit my invention to utilizing the particular lug 15 that is engaged by the blank, as 'the means to engage the lever 41.

In the conventional showing of a wire bound box blank machine, I conventionally illustrate ratchet mechanism for propelling the feed chains step by step. For instance, I show ratchet wheel L9 driving said chains and actuated from main shaft 6 through the medium of crank connection 50, link or pitman 51, rocking pawl carrier 52 and pawl 53.

In the particular example illustrated, the long pitman 30 and its joints with crank arm 31 and slide 24:, provide suflicient flexibility to permit the back and forth movement of the slide block carrying rock shaft 32.

Also in the particular example illustrated.

the toothed sector3t is provided with the long lower tooth or projection 34 to be engaged by the lower end of the descending rack and thereby swing the sector to bring its teeth into position for meshing with the teeth of the rack and for other reasons, although I do not wish to so limit my invention.

It is evident that various changes, modifications and variations might be resorted to without departing from the spirit and scope of my invention and hence I do not wish to limit myself to the exact disclosures hereof.

What I claim is 1. In a wire bound box blank machine, a.

ing operative relation between said, sector and rack.

2. Mechanism for cutting wire bound box 7 blank binding wires where such wires bridge the space between the rear end of a stapled box blank and the advancing end of the succeeding blank, comprising a longitudinally reciprocatory slide arranged transversely of and out of the paths traversed by the wires to be severed. said slide provided-with means providing cutting edges transversely arranged with respect to said paths, swinging free end cutting blades carried by said slide,

means controlling the swing of said blades as the slide longitudinally reciprocates, and operating mechanism for sa d. slide, said blades normally arranged beside said edges and to one side of the paths of said wires and adapted on the reciprocation of said slide and under the control of said means to swing away from said edges and. move to positions with the wires between the free ends of the blades and the edges and to then close on the wires between the edges and blades to sever the same.

3. In a wire bound box blank machine, binding wire cutters comprising blades arranged over the path of the blanks and binding wires and normally withdrawn from operative position with respect thereto, means above said blanks and wires to cooperate with said blades in shearing said wires, each blade having a free end, and actuating and controlling means for swinging the blades downwardly and advancingthem laterally to project their free ends under the wires and to then swing the blades upwardly to sever the wires and to finally return the blades to normal withdrawn position.

4. In a wire bound box blank machine, binding wire cutters comprising shear blocks adjustable toward and from each other and held against vertical movement, a support for said blocks, means normally securing said blocks, respectively, to said support against movement independently thereof and whereby said blocks are rendered independently adjustable, normal]y-horizontallydisposed free-end vertically swingable blades pivoted to said blocks to cooperate therewith in shearing the wires, and operating means for said blades.

5. In a wire bound box blank machine, binding wire cutters comprising swinging .free end blades adapted to swing down into the spaces between blanks and to project under the binding wires bridging said spaces and to swing up to shear said wires, means above said wires for cooperating with said blades in shearing the wires, and, operating means.

6. In a wire bound box blank machine, a slide arranged above and transversely of the path along which the wire bound blanks advance, a stationary bar adjacent to said slide, means for reciprocating said slide, pairs of blocks, one block of each pair forming a shear block and having a free end swinging cutter blade pivoted thereto, and blade swinging and controlling links pivoted to the blades and to the other blocks ofsaid pairs, corresponding blocks of said pairs lie- 111g secured to and adjustable longitudinally of said. slide and the other blocks of said pairs being secured to and adjustable longitudinally of said bar.

7. A wire bound box blank machine comprising several cutters for severing the bind ing wires, a rocking member operatively connected with the several cutters for driving the same, stapler operating means provided with a periodically reciprocating part to drive said rocking member, a slide yieldingly maintained in nominal position and normally holding said rocking member from operativcposition with respect to said part whereby said cutters are normally inactive, a step by step feeder f r advancing the box blan s and provided with a device movingthercwith and locating the rear end oi a stapled. box blank with respect to said cutters, said device arranged to move said slide to a position with the rocking member in operative relation to said part, and a trip for releasing said slide from said'devicc for automatic return to normal position.

-8. A wire bound box blank machine comprising binding wire cutting mechanism, a movable member connected with said mocha nism for operating the same, a stapler having means for periodically operating the same provided with a periodically reciprocating part for driving said movable memher to actuate said mechanism on a wire cutting operation, a carrier for said movable member having a limited range of movement, said carrier normally maintaining said movable member in inoperative position with respect to said reciprocating part whereby said cuttter mechanism is normally inactive, means for returning said carrier to said normal position when moved therefrom and released, and a step by step feeder for the bot-L blanks provided with a projection for moving said carrier to and temporarily holdin? the same at a position wherein said member is operatively located with respect to said part, said carrier being provided with a trip for automatically releasing the carrier from said projection to permit return of the carrier to ijiormal position, substantially as described.

9. A. wire bound box blank machine, comp ing binding wire cutting mechanism, a movable member connected to actuate said mechanism, a device for operatively engaging said member to drive said mechanism on a wire cuttin and return operation, said device reciprocating periodically in a fixed path, a carrier for said movable member and normally maintaining the same out of said liked path whereby said mechanism and said movable member are normally inactive, and a feeder for the box blanks provided with a part carried forward thereby to force said carrier to abnormalposition with said member located in the path of said device, said carrier having a limited range of movement along the path of said feeder and being pro vided with a trip for automatically releasing the carrier from said part for return to its normal position, means being provided for returning the carrier to normal position when released.

H). A wire bound box blank machine, comprising a step by step feeder for the box blanks provided with a part moving forward therewith, aslide block having a limited range of movement along the path said feeder, binding wire cutting mechanism, a cutting mechanism operating member carried by said block, a stapler and its actuating means having a driver for said operating member pCIlOCllCfllly moving in a fixed path, and means for v'lQldlDQ'lY holding said block in and returning the same to normal position, said member being normally held from said fixed path by said block, said part be ing arranged to force said block from normal position and to hold the same with said member in the path of said driver when the rear end of the stapled blank is in certain relation to the cutting mechanism, atripping device being provided. between. the block and part for automatically releasing the block from the part.

11. A wire bound box blank machine having a periodically movable box blank feeder and a periodically movable stapler; said machine comprising a rack moving in unison with the stapler and reciprocating in a fixed path, normally-inactive binding wire cutting mechanism having driving means in cludin a toothed sector to mesh with and be rocked by said rack to drive the cutting mechanism, said sector being normally held from the path of said rack, and means'for moving said sector into the path of said rack and maintaining the rack and sector in temporary operative relation.

12. A wire bound box blank machine having a periodically movable box blank feeder and a periodically movable stapler; said machine comprising a rack moving in unison with the stapler and reciprocating in a fixed path, normally-inactive binding wire cutting mechanism having driving means including a toothed sector to mesh with and be rocked by said rack to drive the cutting mechanism and having an'elongated front end tooth to be engaged by the rack end to initiate the sector swing, said sector being normally held from the path of said rack, and means for moving said sector into the path of said rack and maintaining the rack and sector in temporary operative relation.

13. A wire bound box blank machine having a step by step box blank feeder and a periodically movable stapler; said machine comprising a spring-held slide block having a limited movement along the path of the feeder, said feeder having a projection to move said block and temporarily hold the same from its normal position, a trip and cam mechanism whereby the block is automatically released from said projection for return to normal position, normally-inactive binding wire cutting mechanism, and driving means for said cutting-mechanism controlled by said block, said block normally maintaining said means from operative relation with said cutting mechanism, said block arranged to throw said means temporarily into operative relation with said cutting mechanism when said block is held from its normal position by said projection.

14. A wire bound box blank machine, comprising a step by step blank feed having a projection bearing a certain relation to the end of astapled blank, a stapler, binding wire cutting mechanism, a toothed driver for said cutting mechanism periodically movable in unison with the stapler, cutting mechanism operating connections embodying a toothed member adapted tomesh with and be actuated by said driver to drive the cutting mechanism but normally out of mesh and operative relation therewith whereby the cutting mechanism is normally inactive, and means positively controlled and moved by said projection to temporarily shift to and hold said toothed member in operative relation to said driver to mesh therewith and cause a wire cutting operation of said mechanism.

15. A wire bound box blank machine, comprising several cutters, one for each binding wire, aslide connected with said several cutters for simultaneously moving the same on their cutting and on their return strokes, a movable member connected with said slide for reciprocating the same, a periodically movable driver for said memher for moving the same to operate said outters, said movable member and driver being normally out of operative relation whereby the cutters are normally inactive, a step by step feed for the blanks provided with a part positively moved forward by the feed, and means arranged to be moved. from normal position by said part to bring said memher and driver temporarily into operative relation for driving the cutters when a stapled box blank has assumed a certain position with respect to said cutters.

16. A wire bound box blank machine, comprising binding wire cutting mechanism, a rock shaft having a link connection with said mechanism for actuating the same, said shaft provided with a toothed sector for actuating the same, a stapler, a rack moving with. said stapler for meshing withsaidl sector to drive said shaft, a. movable carrier for said shaft and whereby the same is normally held with said sector out of the path of said rack, and a blank feed having part to move said carrier to position with the sector in the path of the rack.

17. A wire bound box blank machine, comprising a box blank feed, a carrier having a limited range of movement along said feed, means yieldingly holding the carrier in normal position and for returning the same thereto, said feed having a part to move the carrier from normal position and. to hold the same temporarily in abnormal position, means whereby the carrier is automatically released from said part for return to normal position, binding wire cutting mechanism, driving means for actuating said mechanism, and operating connections between said driving means and said cutting mechanism, said operating connections thrown into and from operative relation with said driving means by said carrier, sul stantially as described.

18. A wire bound box blank machine, comprising binding wire cutting mechanism embodying an operating and controlling bar, a rock shaft having operating connection with said bar for reciprocating the same, said shaft provided with a lateral arm for rocking the same, a stapler, a recip-rocatory cuttingmechanism driver moving with the stapler to engage said lateral arm and rock said shaft to drive the cutting mechanism, a carrier for said rock sha'lt, said carrier being normally held in position with said. arm out of the path of said driver, and a box blank feed having a part to move said carrier and hold the same temporarily in position with said arm in the path of said driver.

19. A wire bounifl. box blank machine, comprising a box blank feed, a slideway arranged. adjacent thereto and longitudinally thereof, a slide block confined to and movable in said slideway and yieldingly held at its limit of movement in one direction, said feed provided with a part to slide said block from normal. position and hold the same temporarily in abnormal position, trip means whereby said block is automatically released from said part for return to normal position, normally-inactive binding wire cutting mechanism and its operating connections, and driving means tor said connections, the operative relation between said connections and said driving means being controlled by the position of said slide block, substantially as described,

20. A wire bound boX blank machine, comprising a box blank :leed, binding wire cutting mechanism embodying several cutter blocks held against movement toward the blank feed and each having a cutting edge transversely disposed with respect to the feed and all arranged in approximate alinement at the same side of the said teed, tree-end cutter blades, one for each block and fulcrumed thereto and normally arranged transversely of said feed and at the same side thereof as said blocks, mechanism for simultaneously moving said blocks in tandem transversely of the feed, and controlling means tor said blades for causing the same to open and close with respect to the blocks to receive the binding wires between the blades and blocks and to sever the wires, by the said movement of the blocks.

21. Aiwire bound box blank machine, comprising a horizontal box blank feed, and binding wire cutting mechanism embodying a cutter block above said feed and movable horizontally and transversely thereof, means for reciprocating said block, said block having a horizontally disposed cutting edge above said feed, a tree-end cutter blade tulerumed to said block and normally arranged horizontally above said feed, and controlling means for said blade for swinging the same vertically as the block is reciprocated horizontally, substantially as described.

emme 22. A wire bound box blank comprising a horizontal. box blank feed, and binding wire cutting mechanism embodying a cutter block above said feed and mov able horizontally and transversely thereof, means or reciprocating said block, said; block having a horizontally disposed cutting edge above said feed, a tree-end cutter blade :lulcrumed to said block and normally z-irranged horizontally above said leed, said. blade having a cutting edge notched neiir the free end of the blade, and controlling means for said blade flier swinging the same vertically as the block is reciprocated horizontally, substantially as described.

23. A wire bound box blank machine, comprising a box blank feed, a stapler, a support transvers-sely arranged across and provided with cutter blocks having cutting edges permanently located outside of the path of the feed and transversely arranged with respect thereto, transversely-arranged tree-end cutter blades iulcrumed to said blocks respectively, to cooperate with said edges thereof in severing binding wires, means to longitudinally move said support to carry the blocks and blades transversely of the binding wires to positions with the wires between the blocks and respective blades, and controlling means for said blades for swinging the same into-the path of the feed between the bindingwires and for opening and cloliing the blades to and from the feed path and with respect to the blocks for the purposes substantially as described, as said support is moved longitudinally.

24;. A wire bound box blank machine, comprising a box blank feed, a stapler, a bar arranged transversely oi the feed, sevoral cutter blocks carried by said bar, means for rigidly clamping the blocks to and whereby said blocks are rendered independently adjustable toward and from each other and longitudinally of said bar, each block providing a cutting edge transversely ar ranged with respect to said feed and to one side of the path thereof, cutter blades :fulcrumed to said blocks, respectively, and normally arranged transversely of said feed and at the same side thereof as said edges, said blades arranged to move into the path of said feed and between the binding wires and then laterally to receive the wires be tween the blades and edges and then upl wardly to sever the wires against the edges, operating means, and blade controlling means.

machine,

JOHN SHELLENBERG ER

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